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Diodes Incorporated FZT653TC
- Part No.:
- FZT653TC
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Bipolar Transistors
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
FZT653TC.pdf
- Description:
- TRANS NPN 100V 2A SOT-223-3
- Quantity:
- Payment:
- Shipping:
Inventory:3,340
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Product details
Overview
FZT653TC from Diodes Incorporated is a 100V NPN high-performance power transistor in SOT223 package, rated for 2A continuous collector current and 6A peak pulse current, with VCE(sat) < 300mV at 1A and BVCEO = 100V, commonly used in DC-DC converter switching stages and industrial motor drive interface circuits.
For engineers reviewing the FZT653TC datasheet, FZT653TC pinout, FZT653TC application, or FZT653TC equivalent, key selection criteria include breakdown voltage margin, saturation voltage under 2A load, thermal resistance to ambient on 25mm × 25mm 2oz copper, and complementary PNP pairing with FZT753 for push-pull output stages.
Technical Context
The FZT653TC operates as a medium-power NPN bipolar junction transistor optimized for linear and switching applications up to 100V collector-emitter bias. Its hFE ranges from 25–200 across 50mA–2A collector currents, and fT reaches 175MHz at 100mA, supporting fast-switching operation in SMPS and PWM-driven loads.
Thermal design relies on its RθJA of 62.5°C/W when mounted on 25mm × 25mm 2oz FR-4 PCB, and RθJL of 12.9°C/W enables effective heat transfer through the collector lead. ESD robustness includes 4kV HBM rating per JEDEC Class 3A.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 100 V - Ensures safe operation in 48V industrial bus systems with 2× voltage margin |
| IC (continuous) | 2 A - Supports sustained load switching in relay drivers and LED matrix controllers |
| VCE(sat) @ 1A/100mA | 130 mV (typ) - Minimizes conduction loss and self-heating in high-duty-cycle switching |
| hFE @ 1A | 25–55 - Defines base drive requirement for saturated switching at full rated current |
| fT | 175 MHz - Enables stable operation in PWM frequencies up to ~10 MHz with adequate gain margin |
| RθJA (25mm × 25mm 2oz) | 62.5 °C/W - Determines maximum power dissipation before exceeding 150°C junction temperature |
| ESD HBM | 4,000 V - Allows handling without special ESD precautions in standard assembly environments |
Pinout & Package
Package: SOT223 (Type DN), surface-mount, 4-terminal configuration with emitter-connected tab for thermal and electrical grounding. Molded green compound, UL 94V-0 rated, 0.112g weight.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Collector (Tab) | Main current sink path and thermal conduction plane | Electrically connected to exposed metal tab; must be soldered to ≥25mm² copper pour for thermal performance |
| Base | Current-controlled input terminal | Receives 100–200mA drive to saturate at 1–2A collector current; requires series resistor for current limiting |
| Emitter | Reference node for VBE and current return path | Internally bonded to tab in standard SOT223 layout; provides low-inductance ground reference |
| Collector (Lead) | Secondary collector connection | Provides redundant current path and mechanical stability; electrically identical to tab |
Key Features
| Feature | Design Value |
|---|---|
| High BVCEO (100V) | Enables direct use in 48V and 60V nominal systems without external clamping |
| Low VCE(sat) at 2A | Reduces power loss to ≤500mW at full rated current, easing thermal management |
| Complementary PNP pair (FZT753) | Allows matched push-pull stage design with consistent gain and switching timing |
| RoHS-compliant & Halogen-free | Meets automotive and industrial environmental compliance requirements without derating penalties |
| JEDEC Class 3A ESD rating | Eliminates need for inline ESD protection in board-level assembly for most industrial environments |
Applications
| Industrial Motor Interface | DC-DC Converter Switch |
|---|---|
Use Scenario: Driving 24V/1A brushed DC motors in programmable logic controller (PLC) output modules. IC Role / Device Role / Timing Role: NPN switch controlling motor direction and enable via base-driven saturation. Use Value: Low VCE(sat) limits I²R loss to <300mW, avoiding heatsink in compact DIN-rail enclosures. | Use Scenario: High-side switch in non-isolated buck converter for 12V → 5V conversion at 1A output. IC Role / Device Role / Timing Role: Main power switch operating at 200kHz PWM frequency with <1μs turn-on delay. Use Value: fT = 175MHz ensures sufficient gain-bandwidth margin for stable gate drive loop response. |
| LED Matrix Driver | Relay Coil Driver |
Use Scenario: Row-select driver in 8×8 high-brightness LED display with multiplexed scanning. IC Role / Device Role / Timing Role: Constant-current sink for 8 parallel LED strings, switched at 1kHz. Use Value: hFE ≥55 at 1A ensures <20mA base current requirement, reducing MCU GPIO loading. | Use Scenario: 24V relay coil activation in building automation control panels. IC Role / Device Role / Timing Role: Saturated switch delivering 40mA coil current with fast turn-off to suppress back-EMF. Use Value: 1200ns toff enables reliable deactivation within 2ms, preventing contact chatter. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN power transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ZXTN2012ZTA | Lower VCEO (60V), higher hFE (100 min @ 1A), same SOT223 package | Not suitable for >60V bus systems; better for low-voltage, high-gain linear amplification | Select only if system voltage ≤40V and base drive current must be minimized |
| MJD122G | Higher IC (8A), TO-220 package, VCEO = 100V, but larger footprint and no RoHS-3 compliance | Requires heatsink and PCB real estate; not drop-in for space-constrained SOT223 layouts | Choose only when >2A continuous current or legacy TO-220 compatibility is mandatory |
Compared with ZXTN2012ZTA and MJD122G, the FZT653TC uniquely balances 100V rating, SOT223 form factor, RoHS-3 compliance, and 2A capability-making it optimal for space-limited industrial controls where voltage margin and regulatory alignment are critical.
Availability
FZT653TC is available at Aetrix Electronics and suitable for industrial motor interface, DC-DC converter switch, LED matrix driver, and relay coil driver applications requiring stable component supply and long-term manufacturing continuity.
Supply support for FZT653TC includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.
The FZT653TC belongs to Diodes' high-voltage bipolar transistor product line, engineered for rugged industrial switching and power interface applications demanding reliability, thermal efficiency, and environmental compliance.
FAQ
What is the maximum allowable junction temperature for FZT653TC?
The FZT653TC has an operating junction temperature range of –55°C to +150°C. Derating begins at +25°C ambient, with maximum power dissipation dropping linearly to zero at +150°C junction temperature. For reliable long-term operation, junction temperature should be maintained below +135°C under worst-case thermal conditions.
Can FZT653TC replace FZT651 in existing designs?
No-FZT651 has VCEO = 60V and IC = 1A, while FZT653TC offers 100V and 2A ratings. Substituting without circuit review risks overvoltage failure during transients and excessive power dissipation due to mismatched hFE and VCE(sat) characteristics. Layout and drive network must be revalidated.
Is the collector tab electrically isolated in FZT653TC?
No-the collector is internally connected to the exposed metal tab in the SOT223 (Type DN) package. This tab serves as both the primary collector terminal and thermal conduction path. It must be electrically tied to the collector net and thermally anchored to a copper pour; isolation requires external insulation or alternative packaging.
Does FZT653TC support pulsed operation beyond 2A?
Yes-its ICM rating is 6A for peak pulse current, defined under pulsed conditions (≤300µs pulse width, ≤2% duty cycle). Sustained operation above 2A requires verification of transient thermal impedance curves and PCB copper area to avoid junction temperature excursion beyond 150°C.
FZT653TC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-261-4, TO-261AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- NPN
- Current - Collector (Ic) (Max):
- 2 A
- Voltage - Collector Emitter Breakdown (Max):
- 100 V
- Vce Saturation (Max) @ Ib, Ic:
- 500mV @ 200mA, 2A
- Current - Collector Cutoff (Max):
- 100nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 100 @ 500mA, 2V
- Power - Max:
- 2 W
- Frequency - Transition:
- 175MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-223-3
FZT653TC FAQ
1.How can I place an order for FZT653TC through Aetrix?
Please submit a Request for Quotation (RFQ) for FZT653TC on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for FZT653TC reliable?
The price and inventory of FZT653TC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FZT653TC is usually 5 days.
3.What payment methods are accepted for FZT653TC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FZT653TC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FZT653TC?
FZT653TC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FZT653TC order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for FZT653TC?
For technical support, including FZT653TC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FZT653TC requirements.
6.How does Aetrix verify that FZT653TC is sourced from the original manufacturer or authorized distributors?
All FZT653TC products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that FZT653TC meets industry standards.
7.What is the process for return or replacement of FZT653TC?
All FZT653TC units undergo pre-shipment inspection (PSI). If there is an issue with FZT653TC, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The FZT653TC part is unused and in its original packaging.
Return procedure for FZT653TC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
FZT653TC Tags
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